Macleaya cordata, the five-seeded plume-poppy,[1] is a species of flowering plant in the poppy family Papaveraceae,[2] which is used ornamentally.

The Chinese name 博落回 (bóluòhúi) is derived from 簸邏迴 (bòluóhúi), the Xianbei name for a musical instrument also known as 大角 (dà jiǎo, "big horn"), because the sound of blowing the dried[note 1] hollow stem resembles the instrument sound.

[6] The Japanese name 竹似草 (takenigusa) means "bamboo-like herb", also referring to its hollow stem.

[7] Macleaya × kewensis, bred at Kew Gardens, is a hybrid of M. cordata and M. microcarpa.

[8] Macleaya cordata is a source of a variety of chemical compounds, mainly isoquinoline alkaloids.